What Ethernet speed does the HPE P21112-B21 adapter support?

The HPE P21112-B21, based on the Intel E810-CQDA2 controller, supports a data rate of 100 Gb per port. It is designed as a 100Gb Ethernet adapter, making it suitable for environments where 100Gb connectivity is required for server or application workloads.

How many network ports are available on the Intel E810-CQDA2 adapter for HPE?

: "The Intel E810-CQDA2 Ethernet adapter for HPE provides two network ports. Both ports use QSFP28 interfaces, and each port supports a data rate of 100 Gb. This dual-port configuration enables either link aggregation or the use of separate network paths from a single adapter.

What is the host interface type for the HPE Intel E810-CQDA2 adapter?

The adapter connects to the server using a PCIe Gen4 x16 bus interface. This means it requires a compatible PCIe Gen4 x16 slot in the host system to operate. The Gen4 x16 configuration provides the lane bandwidth necessary to support the adapter’s dual 100Gb Ethernet ports.

What form factor does the P21112-B21 Ethernet adapter use?

The P21112-B21 Ethernet adapter is specified as a stand up form factor device. This describes how the adapter is positioned and installed in the server chassis, and it should be matched with compatible expansion slots and mechanical layouts in supported HPE platforms.

What are the physical dimensions of the Intel E810-CQDA2 adapter for HPE?

The adapter has product dimensions of 21.49 x 24.69 x 6.17 cm and a weight of 0.33 kg. These measurements are important for verifying physical fit within a server chassis and for understanding any implications for airflow and cable management in dense rack environments.

P21112-B21 - HPE P21112-B21 100Gb 2-port QSFP28 PCIe Gen4 adapter

Name: HPE P21112-B21 100Gb 2-port QSFP28 PCIe Gen4 adapter
Brand: HPE
SKU: P21112-B21
Price: 1322 USD
Availability: InStock

P21112-B21 - HPE P21112-B21 100Gb 2-port QSFP28 PCIe Gen4 adapter | US IT Hardware

Product overview

The HPE Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter, SKU P21112-B21, is a PCIe Gen4 x16 network adapter designed for high-speed Ethernet connectivity. It provides two 100Gb QSFP28 ports, enabling dense, high-throughput networking in compatible HPE platforms. Classified as a stand up form factor adapter, it fits environments that require a discrete, add-in PCIe Gen4 solution. The adapter’s 100Gb data rate per port supports demanding workloads that depend on fast data movement and low overhead. Physical characteristics include product dimensions of 21.49 x 24.69 x 6.17 cm and a weight of 0.33 kg, relevant for planning server space and handling. As a network adapter, it is suited to scenarios where 100Gb Ethernet and PCIe Gen4 x16 are required for modern data center and enterprise deployments.

Dual 100Gb Ethernet ports via QSFP28 interfaces
PCIe Gen4 x16 host bus interface
Stand up form factor network adapter
Physical size 21.49 x 24.69 x 6.17 cm
Weight of 0.33 kg for handling and planning
Designed as a 100Gb Ethernet network adapter

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Connectivity Technology
Manufacturer part #	P21112-B21
Brand	HPE
Condition	New
Model	Intel E810-CQDA2
Profile	Full height, low profile
Bus Type	PCIe Gen4 x16
Form Factor	Stand up, plug-in card
Product Line	Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE
Product Type	Network adapter
Designed For Systems	HPE Edgeline e920d; HPE ProLiant DL110 Gen10; DL325 Gen10; DL345 Gen10; DL360 Gen10; DL365 Gen10; DL380 Gen10; DL385 Gen10

Compatible systems

Adapter P21112-B21 is listed as designed for various HPE ProLiant Gen10 and Edgeline e920d systems.

HPE ProLiant
Model: DL110 Gen10
Generation: Gen10
Listed as Designed For: Proliant Dl110 Gen10 on P21112-B21 product page.
HPE ProLiant
Model: DL325 Gen10
Generation: Gen10
Listed as Designed For: Dl325 Gen10 for P21112-B21 adapter.
HPE ProLiant
Model: DL345 Gen10
Generation: Gen10
Listed as Designed For: Dl345 Gen10 with P21112-B21.
HPE ProLiant
Model: DL360 Gen10
Generation: Gen10
Listed as Designed For: Dl360 Gen10 with P21112-B21 NIC.
HPE ProLiant
Model: DL365 Gen10
Generation: Gen10
Listed as Designed For: Dl365 Gen10 on P21112-B21 listing.
HPE ProLiant
Model: DL380 Gen10
Generation: Gen10
Listed as Designed For: Dl380 Gen10 on P21112-B21 page.
HPE ProLiant
Model: DL385 Gen10

Details

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Data Transfer Rate	100 Gbps

Networking Ports & Interfaces

Ports	2 x 100 Gigabit Ethernet QSFP28 ports
NIC Type	Optical
NIC Speed	100 Gb/s
Port Type	Dual port QSFP28
Port Quantity	2 ports
Data Link Protocol	100 Gigabit Ethernet
Data Rate per Port	100 Gb
Interface (bus) Type	PCI Express 4.0 x16
Network & Adapter Ports	100 Gigabit QSFP28
PCIe Specification Revision	PCIe 4.0
Network / Transport Protocols	TCP/IP; iSCSI; iWARP

HPE P21112-B21 100Gb 2-port QSFP28 PCIe Gen4 adapter